1. Would Healing and Cell Biology Laboratory, Institute of Basic Medical Science, General Hospital of PLA, Beijing 10853, PR China.
2. Department of Plastic Surgery, General Hospital of The Second Artillery Corps, Beijing 100088, PR China.
3. These authors contributed equally to this work.
4. Department of Gynecology and Obstetrics, General Hospital of Shenyang Military Region, Shenyang 110000, PR China.
5. Department of Plastic Surgery, General Hospital of PLA, Beijing 100853, PR China.
6. Key Laboratory of Wound Repair and Regeneration of PLA, The First Affiliated Hospital, General Hospital of PLA, Beijing 100048, PR China.